User Manual

Figure 3

Typical Non-Isolated Installation/Wiring Diagram for ABHW-4B Audible Base

Figure 4

Typical Isolated Installation/Wiring Diagram for ABHW-4B Audible Base

Figure 3 and 4 Notes:

1. RPR-1 remote relay and HTRI or XTRI are used for 24 VDC power supervision. 24 VDC wire

open will cause trouble reported by HTRI. Refer to Installation Instruction of RPR-1 (315-

096055).

2. ABHW-4B terminals 5-6 are polarity insensitive. Line 1 and Line 2 can be either line of device

loop.

3. EOL device of HTRI: 3.6 K, 1/4 W resistor, P/N 140-820185.

EOL device of HTRI: 470 Ohm, 1/4 W resistor, P/N 140-820164.

EOL device of XTRI: 470 Ohm, 1% 1/2 W Resistor, P/N A5Q00073045.

4. ABHW-4B can be wired either Style Z (Class A) or Style Y (Class B).

5. For the max load current, refer to the specifications of the compatible panels listed in this

document.

6. The 24 VDC regulated power supply could be the Aux Power Output from the compatible

panels, or from PAD-3/PAD-4/PAD-5, or other UL listed 24 VDC regulated power supply.

24 V FWR power supply cannot be allowed.